html,body{
    /* 滚动表现 */
    scroll-behavior: smooth;
}
.banner{
    width: 100%;
    height: 349px;
    min-width: 1200px;
}
.banner .banner-c{
    margin: 0 auto;
    margin-bottom: 49px;
    width: 1200px;
    height: 300px;
    background: url(../img/project/图层\ 543.jpg) no-repeat center;
    background-size: cover;
}
/* ///////// */
/* 右边小导航栏 */
.project{
    width: 100%;
}
.project .project-c{
    width: 1200px;
    margin: 0 auto;
}
.project .project-c .icon{
    width: 1200px;
    height: 20px;
    margin-bottom: 65px;
    /* background-color: pink; */
}
.project .project-c .icon .left{
    float: left;
    width: 180px;
    height: 14px;
    font-size: 14px;
    line-height: 14px;
    /* background-color: aqua; */
}
.project .project-c .icon .left div{
    float: left;
}
.project .project-c .icon .left .ab{
    margin: 0 8px;
}
.project .project-c .icon .left .ac{
    color: #668aca;
}
.project .project-c .icon .right{
    float: right;
    width: fit-content;
    height: 20px;
    line-height: 20px;
}
.project .project-c .icon .right .tion{
    float: left;
    width: 45px;
    height: 20px;
    /* margin-right: 35px;
    margin-left: 35px; */
}
.project .project-c .icon .right .tion a{
    text-align: center;
    display: block;
    line-height: 16px;
    font-size: 14px;
}
.project .project-c .icon .right .tion span{
    display: block;
    width: 12px;
    height: 1px;
    background-color: #668aca;
    margin: 0 auto;
    margin-top: 2px;
    opacity: 0;
}
.project .project-c .icon .right .line{
    float: left;
    width: 1px;
    height: 8px;
    margin: 3px 35px 0 35px;
    background-color: #b5b5b5;
}
.project .project-c .icon .right .tion:hover a{
    font-size: 16px;
    color: #668aca;
}
.project .project-c .icon .right .tion:hover span{
    opacity: 1;
}
.project .project-c .icon .right .tion.active a{
    color: #668aca;
}
.project .project-c .icon .right .tion.active span{
    opacity: 1;
}
/* /////// */
/* 项目展示内容 */
/* 三个图片 */
.project .project-c .nav{
    width: 100%;
    height: 270px;
    margin: 0 auto 20px;
    /* background-color: pink; */
}
.project .project-c .nav .nav-item{
    position: relative;
    width: 360px;
    height: 270px;
    /* background-color:pink; */
    float: left;
    margin-right: 60px;
}
.project .project-c .nav .nav-item .ba{
    font-size: 14px;
    height: 14px;
    color: #767676;
    margin: 28px 0 7px 50px;
}
.project .project-c .nav .nav-item .bb{
    color: #767676;
    font-size: 12px;
    height: 13px;
    margin-left: 50px;
}
.project .project-c .nav .nav-item .lg{
    position: absolute;
    right: 50px;
    top: 210px;
}
.project .project-c .nav .nav-item .mask{
    position: absolute;
    left: 0;
    top: 0;
    width: 100%;
    height: 100%;
    background-color: rgba(0, 0, 0, 0.3);
    opacity: 0;
}
.project .project-c .nav .nav-item .mask .bc{
    height: 15px;
    font-size: 14px;
    color: #fff;
    margin: 58px 0 4px 50px;
}
.project .project-c .nav .nav-item .mask .bd{
    height: 12px;
    font-size: 12px;
    margin-left: 50px;
    color: #fff;
}
.project .project-c .nav .nav-item .mask .be{
    height: 44px;
    width: 252px;
    margin: 14px 0 0 50px;
    font-size: 12px;
    color: #fff;
}
.project .project-c .nav .nav-item .mask .bf{
    position: absolute;
    top: 180px;
    right: 50px;
}
.project .project-c .nav .nav-item:hover .mask{
    opacity: 1;
}
.project .project-c .nav .nav-item:hover .ba{
    opacity: 0;
}
.project .project-c .nav .nav-item:hover .bb{
    opacity: 0;
}
.project .project-c .nav .nav-item:hover .lg{
    opacity: 0;
}
.project .project-c .nav .nav-item:hover .bg{
    width: 360px;
    height: 270px;
}
/* //////// */
/* 底部 */
.bottom{
    width: 100%;
    height: 262px;
    background-color: #f7f7f7;
}
.bottom .bottom-c{
    position: relative;
    width: 1200px;
    height: 100%;
    margin: 0 auto;
}
.bottom .bottom-c .qq{
    position: absolute;
    left: 131px;
    top: 98px;
    width: 125px;
    height: 51px;
    /* background-color: pink; */
}
.bottom .bottom-c .qq .tit{
    margin-bottom: 10px;
    width: 125px;
    height: 16px;
    font-size: 15px;
    color: #767676;
}
.bottom .bottom-c .qq .tu img{
    float: left;
    width: 25px;
    height: 25px;
    margin-right: 19px;
}
.bottom .bottom-c .cn1{
    position: absolute;
    left: 387px;
    top: 98px;
    width: 305px;
    height: 75px;
}
.bottom .bottom-c .cn1 .shuxian{
    float: left;
    width: 1px;
    height: 75px;
    background-color: #e9e9e9;
}
.bottom .bottom-c .cn1 .youzi{
    float: right;
    width: 243px;
    height: 75px;
}
.bottom .bottom-c .cn1 .youzi .e1{
    width: 100%;
    height: 14px;
    line-height: 14px;
    font-size: 14px;
    color: #767676;
    margin-bottom: 16px;
}
.bottom .bottom-c .cn1 .youzi .e2{
    width: 100%;
    height: 14px;
    line-height: 14px;
    font-size: 14px;
    color: #767676;
    margin-bottom: 16px;
}
.bottom .bottom-c .cn1 .youzi .e3{
    width: 100%;
    line-height: 14px;
    height: 14px;
    font-size: 14px;
    color: #767676;
}
.bottom .bottom-c .cn2{
    position: absolute;
    top: 98px;
    right: 146px;
    width: 234px;
    height: 75px;
}
.bottom .bottom-c .cn2 .shuxian{
    float: left;
    width: 1px;
    height: 75px;
    background-color: #e9e9e9;
}
.bottom .bottom-c .cn2 .youzi{
    float: right;
    width: 173px;
    height: 75px;
}
.bottom .bottom-c .cn2 .youzi .e1{
    width: 100%;
    height: 14px;
    line-height: 14px;
    font-size: 14px;
    color: #767676;
    margin-bottom: 16px;
}
.bottom .bottom-c .cn2 .youzi .e2{
    width: 100%;
    height: 14px;
    line-height: 14px;
    font-size: 14px;
    color: #767676;
    margin-bottom: 16px;
}
.bottom .bottom-c .cn2 .youzi .e3{
    width: 100%;
    line-height: 14px;
    height: 14px;
    font-size: 14px;
    color: #767676;
}